Blank "Priority" throws an error while creating an issue in Live plan

2020-07-13 05:12:13,423 http-nio-8080-exec-166 WARN H364170 312x1016984x9 1hnlnq1 10.68.134.119,10.22.224.164 /rest/jpo/1.0/issues/commit [c.a.r.j.c.scenario.common.BaseScenarioEntityCommitService] Error in commit operation.
com.atlassian.rm.jpo.env.issues.EnvironmentIssueUpdateException: Specific error details: {priority=The priority selected is invalid.}
	at com.atlassian.rm.jpo.env.issues.JiraIssueService.updateIssue(JiraIssueService.java:206)
	at com.atlassian.rm.jpo.core.scenario.issue.ScenarioIssueUpdateAction.performApiOperation(ScenarioIssueUpdateAction.java:89)
	at com.atlassian.rm.jpo.core.scenario.issue.ScenarioIssueModificationAction.perform(ScenarioIssueModificationAction.java:284)
	at com.atlassian.rm.common.persistence.transaction.Registry.run(Registry.java:35)
	at com.atlassian.rm.jpo.core.scenario.issue.ScenarioIssueCommitService.update(ScenarioIssueCommitService.java:219)
	at com.atlassian.rm.jpo.core.scenario.issue.ScenarioIssueCommitService.update(ScenarioIssueCommitService.java:47)
	at com.atlassian.rm.jpo.core.scenario.common.BaseScenarioEntityCommitService.updateInternal(BaseScenarioEntityCommitService.java:401)
	at com.atlassian.rm.jpo.core.scenario.common.BaseRankableScenarioEntityCommitService.updateInternal(BaseRankableScenarioEntityCommitService.java:115)
	at com.atlassian.rm.jpo.core.scenario.common.BaseScenarioEntityCommitService.executeOperation(BaseScenarioEntityCommitService.java:436)
	at com.atlassian.rm.jpo.core.scenario.common.BaseScenarioEntityCommitService.transactionalCommitInternal(BaseScenarioEntityCommitService.java:291)
	at com.atlassian.rm.jpo.core.scenario.common.BaseScenarioEntityCommitService$2.apply(BaseScenarioEntityCommitService.java:257)
	at com.atlassian.rm.jpo.core.scenario.common.BaseScenarioEntityCommitService$2.apply(BaseScenarioEntityCommitService.java:252)
	at com.atlassian.rm.common.persistence.transaction.TransactionHandler.inTransaction(TransactionHandler.java:111)
	at com.atlassian.rm.common.persistence.transaction.TransactionHandler.inNewTransaction(TransactionHandler.java:99)
	at com.atlassian.rm.common.persistence.transaction.TransactionHandler.inNewTransaction(TransactionHandler.java:89)
	at com.atlassian.rm.common.persistence.transaction.TransactionHandler.lambda$inDatabaseTransaction$3(TransactionHandler.java:69)
	at com.atlassian.rm.common.persistence.DefaultDatabaseProvider.lambda$run$0(DefaultDatabaseProvider.java:24)
	at com.atlassian.rm.common.persistence.env.JiraDatabaseProvider.lambda$execute$0(JiraDatabaseProvider.java:34)
	at com.atlassian.rm.common.bridges.jira.persistence.JiraDatabaseProviderBridge76.execute(JiraDatabaseProviderBridge76.java:59)
	at com.atlassian.rm.common.persistence.env.JiraDatabaseProvider.execute(JiraDatabaseProvider.java:34)
	at com.atlassian.rm.common.persistence.DefaultDatabaseProvider.run(DefaultDatabaseProvider.java:24)
	at com.atlassian.rm.common.persistence.transaction.TransactionHandler.inDatabaseTransaction(TransactionHandler.java:68)
	at com.atlassian.rm.jpo.core.scenario.common.BaseScenarioEntityCommitService.commitInternal(BaseScenarioEntityCommitService.java:252)
	at com.atlassian.rm.jpo.core.scenario.common.BaseScenarioEntityCommitService.commit(BaseScenarioEntityCommitService.java:143)
	at com.atlassian.rm.jpo.rest.service.scenario.common.BaseScenarioCommitRestEndpoint.commit(BaseScenarioCommitRestEndpoint.java:43)
	... 3 filtered
	at java.lang.reflect.Method.invoke(Method.java:498)
	... 8 filtered
	at com.atlassian.rm.common.rest.mau.MauTrackingDispatcher.dispatch(MauTrackingDispatcher.java:28)
	at com.atlassian.rm.common.rest.permissions.AnnotationPermissionDispatcher.dispatch(AnnotationPermissionDispatcher.java:49)
	at com.atlassian.rm.common.rest.permissions.AnnotationPermissionDispatcher.dispatch(AnnotationPermissionDispatcher.java:49)
	at com.atlassian.rm.common.rest.scope.RequestOperationScopeDispatcher.dispatch(RequestOperationScopeDispatcher.java:25)
	... 10 filtered
	at com.atlassian.plugins.rest.module.RestDelegatingServletFilter$JerseyOsgiServletContainer.doFilter(RestDelegatingServletFilter.java:154)
	... 1 filtered
	at com.atlassian.plugins.rest.module.RestDelegatingServletFilter.doFilter(RestDelegatingServletFilter.java:68)
	... 41 filtered
	at com.atlassian.web.servlet.plugin.request.RedirectInterceptingFilter.doFilter(RedirectInterceptingFilter.java:21)
	... 42 filtered
	at net.youngaweb.jira.ServletFilter.doFilter(ServletFilter.java:336)
	... 14 filtered
	at com.atlassian.jira.security.JiraSecurityFilter.lambda$doFilter$0(JiraSecurityFilter.java:66)
	... 1 filtered
	at com.atlassian.jira.security.JiraSecurityFilter.doFilter(JiraSecurityFilter.java:64)
	... 16 filtered
	at com.atlassian.plugins.rest.module.servlet.RestSeraphFilter.doFilter(RestSeraphFilter.java:37)
	... 19 filtered
	at com.atlassian.jira.servermetrics.CorrelationIdPopulatorFilter.doFilter(CorrelationIdPopulatorFilter.java:30)
	... 10 filtered
	at com.atlassian.web.servlet.plugin.request.RedirectInterceptingFilter.doFilter(RedirectInterceptingFilter.java:21)
	... 4 filtered
	at com.atlassian.web.servlet.plugin.LocationCleanerFilter.doFilter(LocationCleanerFilter.java:36)
	... 26 filtered
	at com.atlassian.jira.servermetrics.MetricsCollectorFilter.doFilter(MetricsCollectorFilter.java:25)
	... 25 filtered
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:748)
2020-07-13 05:12:13,434 http-nio-8080-exec-166 ERROR H364170 312x1016984x9 1hnlnq1 10.68.134.119,10.22.224.164 /rest/jpo/1.0/issues/commit [c.a.r.j.c.scenario.issue.IssueScenarioEntityCommitExceptionHandler] Exception when trying to commit issue: specific errors: {priority=The priority selected is invalid.}. errorMessages: []